Journal articles on the topic 'Lens spans'
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1
Gray, Julia. "Life, Death, Inertia, Change: The Hidden Lives of International Organizations." Ethics & International Affairs 34, no. 1 (2020): 33–42. http://dx.doi.org/10.1017/s0892679420000052.
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AbstractThe life spans of international organizations (IOs) can take unexpected turns. But when we reduce IO life spans simply to their existence or lack thereof, or to formal change involving the addition of new members or the revision of charters, we miss the subtler dynamics within IOs. A broader continuum of IO life spans acknowledges life, death, inertia, and change as responses to crises, and affords a more nuanced perspective on international cooperation. Through this lens, the setbacks that many IOs are currently experiencing look less extraordinary.
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NELSON, CYNTHIA. "MURSI SAAD EL-DIN, ED., Gazbia Sirry: Lust for Color (Cairo: American University in Cairo Press, 1998). Pp. 246." International Journal of Middle East Studies 33, no. 2 (May 2001): 324–26. http://dx.doi.org/10.1017/s0020743801382065.
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The attempt to put into words what is fundamentally a visual experience confronts this reviewer with an enormous challenge. Being neither artist nor art critic, I must approach the task through my lens as friend and long-time admirer of Gazbia Hassan Sirry, one of Egypt's leading modern artists, whose varied and innovative artistic career spans more than fifty years. Perhaps in this way I can create a context within which this book can be read, appreciated, and, I hope, used by those scholars who are interested in the dialectic between art and society, artist and social transformation.
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Kadiri, Fadoua. "Morocco’s Inclusive Education Program through the Lens of Ethnography." International Journal of Linguistics, Literature and Translation 5, no. 6 (June 16, 2022): 100–110. http://dx.doi.org/10.32996/ijllt.2022.5.6.12.
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This ethnographic research study explores the changes undergone by an integration classroom designed to receive kids with disabilities following the implementation of Morocco’s 2019 inclusive education program. This longitudinal study spans two academic years (Jan-Feb, 2021 & Jan-Feb, 2022), given that classes were suspended during the academic year 2019-2020 due to the coronavirus pandemic. This paper uses qualitative tools to examine how the newly-devised inclusive education program affected a Moroccan integration classroom. It relies on participant observations, field notes, and informal questioning in addition to analysis of official documents. The research takes place in a Rabat-based integration classroom housed by the Allal Ben Abdellah public elementary school, a pilot establishment with years of expertise in dealing with kids with disabilities. The research shows that there is still a big confusion between the concepts of integration and inclusion as used in the Moroccan context. Inclusive education is still facing the challenges of lack of training for educators, scarcity of resources and equipment, and the rarity of school aids. However, there are some changes that occurred with the advent of the inclusive education program, like the change in the classroom’s demographics and the decrease of segregation of kids with disabilities, which helped many improve especially mild and moderate cases. In addition, the staff is proactive, self-taught, and has a positive attitude, a humane approach, and on-the-job expertise, a fact that helps with the implementation of the inclusive education program.
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Palmer, Jason. "Be Careful, Ye Catholic: The Entanglement of Mormonism and Money in Peru." Religions 12, no. 4 (March 31, 2021): 246. http://dx.doi.org/10.3390/rel12040246.
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Globalization is not only the feverish insistence that land’s superfluity is increasing exponentially, but it is also the willful ignorance of the reality underlying that illusion: Distance has not been annihilated. Distance, and the land it spans, is more important than ever. Globalization imagines away the land’s importance because of whom it imagines to be “of the land”. This entity, indigeneity, threatens to expose the lie upon which globalization is founded. According to many people of the land surrounding the mid-Andean city of Arequipa, Peru, globalization’s promise of unidirectional wealth accumulation severs their connection to sustainable, terrestrial cyclicity. For some of these arequipeños, few institutions embody this existential disruption more menacingly than The Church of Jesus Christ of Latter-Day Saints. Mormonism, therefore, becomes a material and mythological threat to the lifeways of their land. This article grounds the fraught, mimetic relationship between globalization and land in Peru through the lens of anti-Mormonism.
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Kook, Kyunghee. "“I Want to Be Trafficked so I Can Migrate!”: Cross-Border Movement of North Koreans into China through Brokerage and Smuggling Networks." ANNALS of the American Academy of Political and Social Science 676, no. 1 (February 21, 2018): 114–34. http://dx.doi.org/10.1177/0002716217748591.
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This article draws on ethnographic fieldwork and in-depth interviews with forty North Korean escapees involved in smuggling and brokerage networks and explores North Korean escapees’ cross-border mobility to China. It addresses the complexities of smuggling, showing how the category spans a continuum of actions that might be described as saving or rescuing at one pole, and the kind of exploitation generally termed trafficking at the other. By focusing on the multiple and varied interests and motivations of different actors who assist with North Korean women’s migration, I argue that differences among trafficking, smuggling, and migration are constructed rather than essential, and reflect a continued tendency among policy-makers to imagine human mobility through the lens of a fictional opposition between actions that are forced and those that are voluntary. The North Korean women’s migratory processes demonstrate the complexities of brokerage and smuggling networks, revealing how they can, but do not necessarily, entail the kind of exploitation generally termed trafficking.
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MacNeill, Margaret. "‘Screenagers’ and In/Active Lifestyles: A Socio-Cultural Analysis of Healthy Life Span Promotion." Kinesiology Review 2, no. 1 (February 2013): 47–54. http://dx.doi.org/10.1123/krj.2.1.47.
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Young people are increasingly the targets of public health and private-public sector campaigns to promote active lifestyles and longevity of the life span (Arnett, 2012; Faulkner, Kwan, Brownrigg, & MacNeill, 2011). Yet media campaigns alone cannot redress the barriers to physical activity. In this paper I argue that theories of life span and social marketing approaches to health promotion share a grounding in the behavioral sciences that need to be broadened to consider social determinants of active and inactive lifestyles and uncover how youth audiences make sense of health promotions. As such, I suggest how the social marketing of healthy life spans can move upstream to advocate policies and programs for youth activity. In this article I a) critically examine our shifting notions of youth and assumptions about life span, b) highlight trends in media consumption by youth, c) consider how kinesiology can broaden the social marketing lens to active media advocacy for social justice, and d) raise implications for research and intervention.
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Teletin, Marius, Manuel Mark, Olivia Wendling, Nadège Vernet, Betty Féret, Muriel Klopfenstein, Yann Herault, and Norbert B. Ghyselinck. "Timeline of Developmental Defects Generated upon Genetic Inhibition of the Retinoic Acid Receptor Signaling Pathway." Biomedicines 11, no. 1 (January 12, 2023): 198. http://dx.doi.org/10.3390/biomedicines11010198.
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It has been established for almost 30 years that the retinoic acid receptor (RAR) signalling pathway plays essential roles in the morphogenesis of a large variety of organs and systems. Here, we used a temporally controlled genetic ablation procedure to precisely determine the time windows requiring RAR functions. Our results indicate that from E8.5 to E9.5, RAR functions are critical for the axial rotation of the embryo, the appearance of the sinus venosus, the modelling of blood vessels, and the formation of forelimb buds, lung buds, dorsal pancreatic bud, lens, and otocyst. They also reveal that E9.5 to E10.5 spans a critical developmental period during which the RARs are required for trachea formation, lung branching morphogenesis, patterning of great arteries derived from aortic arches, closure of the optic fissure, and growth of inner ear structures and of facial processes. Comparing the phenotypes of mutants lacking the 3 RARs with that of mutants deprived of all-trans retinoic acid (ATRA) synthesising enzymes establishes that cardiac looping is the earliest known morphogenetic event requiring a functional ATRA-activated RAR signalling pathway.
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Kim, A. Yu, M. F. Amoyan, and V. E. Khapilin. "Algorithm for numerical calculation of nonlinear lenticular membrane-pneumatic systems by iterative method of parameter increments taking into account the aftereffect of air pressure." Herald of Dagestan State Technical University. Technical Sciences 49, no. 2 (August 17, 2022): 133–42. http://dx.doi.org/10.21822/2073-6185-2022-49-2-133-142.
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Objective. The purpose of this study is to create a static calculation algorithm to determine the maximum bearing capacity of a lenticular membrane-pneumatic system for covering large spans under the action of external force loads.Method. A numerical study of a large-span membranepneumatic structure was carried out by the step method of incrementing parameters using the finite element method and the Euler-Cauchy numerical procedure of the third order of accuracy at the step.Result. The authors have developed a technique for computer static calculation of geometrically and physically nonlinear lenticular membrane-pneumatic systems of coatings for large span structures by the iterative method of parameter increments with the phased application of the finite element method in the form of the displacement method, the universal equation of gas state and the improved Euler-Cauchy numerical procedure of the third order of accuracy.Conclusion. Ignoring the aftereffect in the calculations means the imbalance of the system due to unbalanced pneumatic forces calculated with an error of 11.2% and affecting, as the calculations showed, in the amount of approximately 7% percent on the increment of excess air pressure in the lens.
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Pasquetto, Irene V., Alberto F. Olivieri, Luca Tacchetti, Gianni Riotta, and Alessandra Spada. "Disinformation as Infrastructure: Making and Maintaining the QAnon Conspiracy on Italian Digital Media." Proceedings of the ACM on Human-Computer Interaction 6, CSCW1 (March 30, 2022): 1–31. http://dx.doi.org/10.1145/3512931.
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Building from sociotechnical studies of disinformation and of information infrastructures, we examine how - over a period of eleven months - Italian QAnon supporters designed and maintained a distributed, multi-layered "infrastructure of disinformation" that spans multiple social media platforms, messaging apps, online forums, alternative media channels, as well as websites, databases, and content aggregators. Examining disinformation from an infrastructural lens reveals how QAnon disinformation operations extend well-beyond the use of social media and the construction of false narratives. While QAnon conspiracy theories continue to evolve and adapt, the overarching (dis)information infrastructure through which "epistemic evidence" is constructed and constantly updated is rather stable and has increased in size and complexity over time. Most importantly, we also found that deplatforming is a time-sensitive effort. The longer platforms wait to intervene, the harder it is to eradicate infrastructures as they develop new layers, get distributed across the Internet, and can rely on a critical mass of loyal followers. More research is needed to examine whether the key characteristics of the disinformation infrastructure that we identified extend to other disinformation infrastructures, which might include infrastructures put together by climate change denialists, vaccine skeptics, or voter fraud advocates.
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Walden, Jennifer. "A pile of drums: Putting theory into practice in culturally diverse music education." International Journal of Music Education 38, no. 1 (October 11, 2019): 79–92. http://dx.doi.org/10.1177/0255761419871358.
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This article provides music educators with practical ways to (a) build school community through culturally diverse music and informal performances and (b) inculcate global perspectives into music programs (including concert band and choir) through culturally diverse music. In an autoethnographic style, the article tells a story that spans 2 years in a challenging situation: an international school in a country wrought with political and economic instability. It examines community building and inculcating global awareness from four perspectives. The first perspective reviews engagement in cultural diversity in music education through the lens of recently completed PhD research. It looks what scholars are writing about culturally diverse music education and how these ideas subsequently look in practice. Second, 30 years of personal experience teaching culturally diverse music are tied in, including ideas for student engagement in music classes. The third perspective includes practical ideas: how culturally diverse music can be integrated to broaden a program and rejuvenate interest in music. Finally, the fourth reveals responses from students experiencing learning through culturally diverse music. Examples, transcriptions, and recommended resources are included, leaving music teachers with useful, sustainable approaches for culturally diverse inclusivity.
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Ahmed, Hamoud Yahya, and Ruzy Suliza Hashim. "Resisting Colonialism through Nature: An Ecopostcolonial Reading of Mahmoud Darwish's Selected Poems." Holy Land Studies 13, no. 1 (May 2014): 89–107. http://dx.doi.org/10.3366/hls.2014.0079.
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Resisting colonialism remains the main theme of the poetry of the Arab Palestinian poet Mahmoud Darwish. This paper explores how Darwish employs nature as a new way for resisting the occupation of his homeland. His poems, throughout his writing life that spans fifty years, can be used to demonstrate how an ecopostcolonial perspective might contribute to an understanding of the poet's resistance through nature to the colonisers in his homeland. The theoretical framework used in this study is derived from both the ecocritical and postcolonial theories of reading literature. It is termed as ecoresistance as a new perspective of analysing resistance in the Arab literary studies, a non-western viewpoint and an original analytical lens for reading Darwish's work. The analysis reveals that Darwish uses the various forms of nature that range from the forms of the pure nature to the forms that have been cultivated. Through the ecopostcolonial perspective of the study, the employment of nature for resistance and the indication of Darwish as an ecopostcolonial poet of the Arab world are played out. The paper further proposes new insights into man's connection to land and is a step towards opening up the field of ecocriticism as a way of reading Arab poetry of resistance.
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Sachdev, Aditi Rabindra. "Gender Disparity in STEM Across Cultures." Industrial and Organizational Psychology 11, no. 2 (June 2018): 309–13. http://dx.doi.org/10.1017/iop.2018.20.
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Miner et al. (2018) claim that focusing on individual factors to understand gender inequity in the fields of science, technology, engineering, and mathematics (STEM) provides an incomplete explanation of the phenomenon. They challenge the appropriateness of individual-level explanations that hold women responsible for the injustices they experience, suggesting that this perspective fails to consider larger social-contextual influences. Instead, to explain gender disparity in the STEM fields, Miner et al. offer a social-structural lens through which to view the situation that relies on commonly held beliefs about women in society. The inequality that characterizes these fields, however, is a worldwide phenomenon that spans societal boundaries. Therefore, understanding the social-contextual factors that contribute to gender inequality in the STEM fields requires a cross-cultural examination of norms and values. In this commentary, I first outline a program of research aimed at developing an empirically supported theoretical framework that explains gender inequity in the STEM fields from a cross-cultural perspective. Then, I review the ways in which cultural beliefs influence education and careers in the STEM fields. Finally, I provide some practical suggestions of ways to promote gender equality in STEM fields. As such, this commentary serves as a call to integrate concepts from vocational, educational, and cross-cultural psychology to address an issue of upmost importance: equal representation.
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George, John C., Jeffrey Bada, Judith Zeh, Laura Scott, Stephen E. Brown, Todd O'Hara, and Robert Suydam. "Age and growth estimates of bowhead whales (Balaena mysticetus) via aspartic acid racemization." Canadian Journal of Zoology 77, no. 4 (September 15, 1999): 571–80. http://dx.doi.org/10.1139/z99-015.
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A total of 48 eye globes were collected and analyzed to estimate ages of bowhead whales using the aspartic acid racemization technique. In this technique, age is estimated based on intrinsic changes in the D and L enantiomeric isomeric forms of aspartic acid in the eye lens nucleus. Age estimates were successful for 42 animals. Racemization rate (kAsp) for aspartic acid was based on data from earlier studies of humans and fin whales; the estimate used was 1.18 10-3/year. The D/L ratio at birth ((D/L)0) was estimated using animals less than or equal to 2 years of age (n = 8), since variability in the D/L measurements is large enough that differences among ages in this range are unmeasurable. The (D/L)0 estimate was 0.0285. Variance of the age estimates was obtained using the delta method. Based on these data, growth appears faster for females than males, and age at sexual maturity (age at length 12-13 m for males and 13-13.5 m for females) occurs at around 25 years of age. Growth slows markedly for both sexes at roughly 40-50 years of age. Four individuals (all males) exceed 100 years of age. Standard error increased with estimated age, but the age estimates had lower coefficients of variation for older animals. Recoveries of traditional whale-hunting tools from five recently harvested whales also suggest life-spans in excess of 100 years of age in some cases.
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Pagano, G., O. A. Hannuksela, and T. G. F. Li. "LENSINGGW: a PYTHON package for lensing of gravitational waves." Astronomy & Astrophysics 643 (November 2020): A167. http://dx.doi.org/10.1051/0004-6361/202038730.
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Advanced LIGO and Advanced Virgo might be able to observe the first lensed gravitational waves in the coming years. With the addition of the KAGRA and LIGO India detectors to the detector network and with the future construction of the Einstein Telescope we might be able to observe hundreds of lensed events. Ground-based gravitational-wave detectors can resolve arrival-time differences on the order of the inverse of the observed frequencies. The LIGO and Virgo frequency band spans from a few Hz to a few kHz, therefore the typical time resolution of current interferometers is on the order of milliseconds. When microlenses are embedded in galaxies or galaxy clusters, lensing can become more prominent and result in observable time delays at LIGO and Virgo frequencies. Therefore, gravitational waves might offer an exciting alternative probe of microlensing. However, only a few lensing configurations have currently been worked out in the context of gravitational-wave lensing. In this paper, we present LENSINGGW, a PYTHON package designed to handle both strong lensing and microlensing of compact binaries and the related gravitational-wave signals in the geometrical optics limit. This synergy paves the way for systematic parameter space investigations and for the detection of arbitrary lens configurations and compact sources. Here we focus on the LIGO and Virgo frequencies. We demonstrate the working mechanism of LENSINGGW and its use in studying microlenses that are embedded in galaxies.
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Yeh, Cathery. "Democratic accountability in the neoliberal era: The politics of teaching and teacher education in mathematics classrooms." Policy Futures in Education 16, no. 6 (June 4, 2018): 764–80. http://dx.doi.org/10.1177/1478210318776470.
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The effects of neoliberal policies have increased inequalities globally and nationally, diminishing democratic accountability. They have also tainted the goals, motivations, methods, and standards of excellence with regard to teacher preparation. Although various programs of research have examined teacher preparation in terms of diversity and equity, fewer studies have raised questions about institutional constructs of power and privilege: what counts as knowledge?; whose experiences frame curricular and instructional design?; and why and how are systems of inequality perpetuated within and after university-based teacher preparation? In response, this article uses critical pedagogy as a lens through which to view teacher preparation programs as institutions that support neoliberalism by giving unconditional support to a Western episteme that eradicates the knowledge systems of students and teachers of color, including their languages and experiences of the world. The article describes the experiences of four bilingual teachers and teachers of color and their attempts to make mandated mathematics programs more responsive to the needs of their bilingual students. The study follows the four teachers for three years—from their year in teacher preparation to their first two years of classroom teaching—to examine the relation between their experiences as classrooms teachers and their exclusion in the teacher preparation phase. The article then argues that teacher preparation programs should move away from narrow definitions of what counts as knowledge to representing, valuing, and legitimizing teachers and students whose knowledge spans multiple cultural and political frames.
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Zheng, Youtong. "Theoretical Understanding of the Linear Relationship between Convective Updrafts and Cloud-Base Height for Shallow Cumulus Clouds. Part I: Maritime Conditions." Journal of the Atmospheric Sciences 76, no. 8 (July 31, 2019): 2539–58. http://dx.doi.org/10.1175/jas-d-18-0323.1.
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Abstract Zheng and Rosenfeld found linear relationships between the convective updrafts and cloud-base height zb using ground-based observations over both land and ocean. The empirical relationships allow for a novel satellite remote sensing technique of inferring the cloud-base updrafts and cloud condensation nuclei concentration, both of which are important for understanding aerosol–cloud–climate interactions but have been notoriously difficult to retrieve from space. In Part I of a two-part study, a theoretical framework is established for understanding this empirical relationship over the ocean. Part II deals with continental cumulus clouds. Using the bulk concept of mixed-layer (ML) model for shallow cumulus, I found that this relationship arises from the conservation law of energetics that requires the radiative flux divergence of an ML to balance surface buoyancy flux. Given a certain ML radiative cooling rate per unit mass Q, a deeper ML (higher zb) undergoes more radiative cooling and requires stronger surface buoyancy flux to balance it, leading to stronger updrafts. The rate with which the updrafts vary with zb is modulated by Q. The cooling rate Q manifests strong resilience to external large-scale forcing that spans a wide range of climatology, allowing the slope of the updrafts–zb relationship to remain nearly invariant. This causes the relationship to manifest linearity. The physical mechanism underlying the resilience of Q to large-scale forcing, such as free-tropospheric moisture and sea surface temperature, is investigated through the lens of the radiative transfer theory (two-stream Schwarzschild equations) and an ML model for shallow cumulus.
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Yamashita, Kazuya, Saki Sakakura, Yoshiko Ofuji, Maho Sato, Takashi Nagamoto, Hirohisa Kubono, Mari Kawamura, and Kotaro Suzuki. "Micro-incision vitrectomy surgery for primary rhegmatogenous retinal detachments with posterior vitreous detachments in elderly patients: Preoperative characteristics and surgical outcomes." PLOS ONE 16, no. 1 (January 6, 2021): e0244614. http://dx.doi.org/10.1371/journal.pone.0244614.
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Purpose To assess the preoperative characteristics and surgical outcomes of using micro-incision vitrectomy surgery (MIVS) to treat RRD with posterior vitreous detachment (PVD) in an older and a younger patient group. Methods This retrospective cohort study included 407 eyes from 397 patients with primary RRD with PVD who were consecutively treated in our hospital from February 2016 to February 2020. PVD was diagnosed clinically by the presence of a Weiss ring, or was diagnosed morphologically via optical coherence tomography and subsequently confirmed during surgery. The main outcome measures were preoperative RRD characteristics, best-corrected visual acuity (BCVA), and postoperative complications. Results Data were analysed from 55 eyes in the elderly group (age 70 and older), and 352 eyes in the young group (age 69 and younger). There was no significant inter-group difference in the initial reattachment rate. Preoperative characteristics indicated that elderly patients had a significantly lower rate of phakic eyes, shorter mean axial length, lower lattice incidence, and longer time spans from onset to surgery. There were no significant between-group differences in the incidence of the following complications: fibrin formation, intraocular pressure elevation, epi-retinal membrane on the macula, intraocular lens optic capture, proliferative vitreoretinopathy, and vitreous haemorrhage. While the elderly patients had significant postoperative improvements in BCVA, these improvements were significantly lower than those of the younger patients. Conclusions This study highlighted the characteristics and surgical outcomes of MIVS in elderly patients with RRD. Although the time from onset to surgery was longer, MIVS still can be performed safely to improve older patients’ postoperative BCVA.
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Cahill, David G., Kenneth Goodson, and Arunava Majumdar. "Thermometry and Thermal Transport in Micro/Nanoscale Solid-State Devices and Structures." Journal of Heat Transfer 124, no. 2 (December 7, 2001): 223–41. http://dx.doi.org/10.1115/1.1454111.
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We review recent advances in experimental methods for high spatial-resolution and high time-resolution thermometry, and the application of these and related methods for measurements of thermal transport in low-dimensional structures. Scanning thermal microscopy (SThM) achieves lateral resolutions of 50 nm and a measurement bandwidth of 100 kHz; SThM has been used to characterize differences in energy dissipation in single-wall and multi-wall carbon nanotubes. Picosecond thermoreflectance enables ultrahigh time-resolution in thermal diffusion experiments and characterization of heat flow across interfaces between materials; the thermal conductance G of interfaces between dissimilar materials spans a relatively small range, 20<G<200 MW m−2K−1 near room temperature. Scanning thermoreflectance microscopy provides nanosecond time resolution and submicron lateral resolution needed for studies of heat transfer in microelectronic, optoelectronic and micromechanical systems. A fully-micromachined solid immersion lens has been demonstrated and achieves thermal-radiation imaging with lateral resolution at far below the diffraction limit, <2 μm. Microfabricated metal bridges using electrical resistance thermometry and joule heating give precise data for thermal conductivity of single crystal films, multilayer thin films, epitaxial superlattices, polycrystalline films, and interlayer dielectrics. The room temperature thermal conductivity of single crystal films of Si is strongly reduced for layer thickness below 100 nm. The through-thickness thermal conductivity of Si-Ge and GaAs-AlAs superlattices has recently been shown to be smaller than the conductivity of the corresponding alloy. The 3ω method has been recently extended to measurements of anisotropic conduction in polyimide and superlattices. Data for carbon nanotubes measured using micromachined and suspended heaters and thermometers indicate a conductivity near room temperature greater than diamond.
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Moore, Amy, and Verity Hawarden. "Discovery Digital Health strategy: COVID-19 accelerates online health care in South Africa." Emerald Emerging Markets Case Studies 10, no. 3 (July 31, 2020): 1–18. http://dx.doi.org/10.1108/eemcs-06-2020-0197.
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Learning outcomes The broad teaching objective is underpinned by the themes of purpose and partnerships. This is taught through application of business model innovation for sustainability where the value proposition is broadened to social and environmental, and multi-stakeholder partnerships in a time of crisis. Students will be expected to analyse the above concepts through a meso (sustainable value), micro (business models) and macro (ecosystems) lens. Upon completion of the case study discussion, successful students will be able to better understand the three features that support sustainable value, explore how a global pandemic can create new business models and partnerships to create social value and analyse how business ecosystems operate against the 6 C framework. Case overview / synopsis Discovery Holdings Limited is a leading financial service organisation in South Africa, and its Digital Health division is responsible for the platform which delivers telemedicine offerings to doctors and patients. The case highlights the development of the telemedicine offering and the period that is covered spans from the launch of the Discovery DrConnect platform in 2017 to April 2020. Adrian Moss is the protagonist in the case. He is a manager in the Special Projects, Digital Health team of Discovery Health, responsible for the DrConnect project. His challenge is how to raise more awareness of the DrConnect offering and how to enhance uptake from doctors and patients. COVID-19 and the lockdown in South Africa in March and April of 2020 presented an opportunity for both doctors and patients to use telemedicine as a new way of engagement and treatment. Complexity academic level This case is appropriate for masters, MBA and executive education students focusing on the fields of study of environment of business, strategy, business model innovation and social entrepreneurship. Supplementary materials Teaching Notes are available for educators only. Subject code CSS: 11 Strategy.
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Johns, Nick, Alison Green, Rachel Swann, and Luke Sloan. "Street Pastors in the Night-Time Economy: harmless do-gooders or a manifestation of a New Right agenda?" Safer Communities 18, no. 1 (January 14, 2019): 1–15. http://dx.doi.org/10.1108/sc-05-2018-0015.
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PurposeThe purpose of this paper, which follows an earlier paper published in this journal, is to explore the shape and nature of plural policing through the lens of New Right ideology. It aims to reinforce the understanding that policy is driven by both neoliberalism and neoconservatism, not simply the former. In policy terms, it uses the vehicle of a faith-based initiative – the Street Pastors – to consider how the strategic line of plural policing may be shifting.Design/methodology/approachThe research that informs this paper spans 2012 to the present day incorporating a multi-method evaluation, an ongoing observation with informal interviews, and two e-mail surveys directed at university students in Plymouth and Cardiff. In addition, the authors carried out a critical analysis of a research report produced by van Steden and a documentary analysis of national newspaper reports of Street Pastor activities.FindingsIn a previous paper, the authors provided evidence to support the contention of Jones and Lister (2015) that there has been a shift in the landscape of plural policing. The Street Pastors initiative is a movement from “policing by the state” towards “policing from below”. The authors suggest here that there may be evidence to speculate that another shift might occur from “policing from below” to “policing through the state”. Ultimately, the authors contend, such shifts reflect and serve the dominance of New Right ideology in social and public policy.Research limitations/implicationsThe research limitations of this paper are twofold. First, the surveys had very small sample sizes and so the results should be treated with caution. The authors have underlined this in detail where necessary. Second, it is informed by a series of related though discrete research activities. However, the authors regard this as a strength also, as the findings are consistent across the range. The implications relate to the way in which policy designed to encourage partnership might lead to off-loading public responsibilities on the one hand, while allowing co-option on the other hand.Social implicationsThe practical implications are indivisible from the social implications in the authors’ view. The neoliberal and neoconservative dimensions of the current dominant ideology are using local initiatives to save public money and reify disciplinary features of social and public policy.Originality/valueThe originality of this research relates to the way it was conducted, drawing together the products of discrete but related activities. It adds to the growing research landscape involving the Street Pastors, an important faith-based, publicly backed initiative. But more importantly, it underlines how the two dimensions of New Right ideology come together in practice. The example of the Street Pastors indicates, through the lens of plural policing, how voluntary and local initiatives are being used to refocus the priorities of social and public policy.
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Spillane, James P., and Lauren Anderson. "The Architecture of Anticipation and Novices’ Emerging Understandings of the Principal Position: Occupational Sense Making at the Intersection of Individual, Organization, and Institution." Teachers College Record: The Voice of Scholarship in Education 116, no. 7 (July 2014): 1–42. http://dx.doi.org/10.1177/016146811411600705.
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Background While teaching and school-level administrative work remain stepping stones in most pathways to the principal's office, these formal experiences—alongside informal or formal apprenticeships—do not immunize newcomers to the struggles of occupational socialization. To the contrary, crossing over to the principal's office represents a sizable shift as newcomers assume a multifaceted job that spans instructional, managerial, and political realms. Purpose This manuscript explores novice school principals’ efforts to make sense of their new occupation immediately following their boundary passage into the principalship. To frame this work, we draw from the literature on occupational and organizational socialization and newcomer sense making. Sense making—with its emphasis on how meanings materialize in situ, thus informing and constraining identity and action—offers a utile lens given the particular challenges that new principals face as they navigate today's pluralistic institutional environment. Design/Data Data are drawn from a multiple-methods study of newly hired first-time principals in one large urban school district. Specifically, our analysis focuses on interview data collected from a sample of 18 purposefully selected new principals just after they were hired and just prior to the start of their first year on the job. Findings We find that, contending with a plurality, diversity, and simultaneity of stakeholder expectations, novices’ sense making centered on challenges related to organizational legitimacy and organizational integrity; however, the relative prominence of these dual imperatives differed based on the position of principals’ schools in the broader institutional field. Depending upon how imperatives interacted in local organizational contexts, novices faced puzzles of different kind and character. For some, localized puzzles called for a kind of institutional work that we term repairing; for others, puzzles called more for (re-)presenting, refining, and/or maintaining. In crafting courses of action, novices drew on institutional logics and metaphors from personal experience, which they used as resources in their efforts to resist exploding out organizationally and personally in response to multiple stakeholders’ diverse demands. Doing so, novices constructed occupational selves that were not unitary and that encompassed inconsistencies and contradictions. Conclusions Our analysis suggests the need to consider principals’ socialization as it unfolds in schools as they are situated within the broader institutional landscape. In addition, whereas much of the sense making literature focuses on microprocesses, our analysis attends to how the institutional environment enters sense making. In doing so, it adds to the knowledge base concerning the microfoundations of institutional theory as it plays out in the education field, and it enriches the empirical research base concerning new principals’ expectations and experiences in contemporary public schools.
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Rau, J. Y., K. W. Hsiao, J. P. Jhan, S. H. Wang, W. C. Fang, and J. L. Wang. "BRIDGE CRACK DETECTION USING MULTI-ROTARY UAV AND OBJECT-BASE IMAGE ANALYSIS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W6 (August 24, 2017): 311–18. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w6-311-2017.
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Bridge is an important infrastructure for human life. Thus, the bridge safety monitoring and maintaining is an important issue to the government. Conventionally, bridge inspection were conducted by human in-situ visual examination. This procedure sometimes require under bridge inspection vehicle or climbing under the bridge personally. Thus, its cost and risk is high as well as labor intensive and time consuming. Particularly, its documentation procedure is subjective without 3D spatial information. In order cope with these challenges, this paper propose the use of a multi-rotary UAV that equipped with a SONY A7r2 high resolution digital camera, 50&thinsp;mm fixed focus length lens, 135 degrees up-down rotating gimbal. The target bridge contains three spans with a total of 60 meters long, 20 meters width and 8 meters height above the water level. In the end, we took about 10,000 images, but some of them were acquired by hand held method taken on the ground using a pole with 2&ndash;8 meters long. Those images were processed by Agisoft PhotoscanPro to obtain exterior and interior orientation parameters. A local coordinate system was defined by using 12 ground control points measured by a total station. After triangulation and camera self-calibration, the RMS of control points is less than 3&thinsp;cm. A 3D CAD model that describe the bridge surface geometry was manually measured by PhotoscanPro. They were composed of planar polygons and will be used for searching related UAV images. Additionally, a photorealistic 3D model can be produced for 3D visualization. In order to detect cracks on the bridge surface, we utilize object-based image analysis (OBIA) technique to segment the image into objects. Later, we derive several object features, such as density, area/bounding box ratio, length/width ratio, length, etc. Then, we can setup a classification rule set to distinguish cracks. Further, we apply semi-global-matching (SGM) to obtain 3D crack information and based on image scale we can calculate the width of a crack object. For spalling volume calculation, we also apply SGM to obtain dense surface geometry. Assuming the background is a planar surface, we can fit a planar function and convert the surface geometry into a DSM. Thus, for spalling area its height will be lower than the plane and its value will be negative. We can thus apply several image processing technique to segment the spalling area and calculate the spalling volume as well. For bridge inspection and UAV image management within a laboratory, we develop a graphic user interface. The major functions include crack auto-detection using OBIA, crack editing, i.e. delete and add cracks, crack attributing, 3D crack visualization, spalling area/volume calculation, bridge defects documentation, etc.
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Min, K. E., R. A. Washenfelder, W. P. Dubé, A. O. Langford, P. M. Edwards, K. J. Zarzana, J. Stutz, et al. "A broadband cavity enhanced absorption spectrometer for aircraft measurements of glyoxal, methylglyoxal, nitrous acid, nitrogen dioxide, and water vapor." Atmospheric Measurement Techniques 9, no. 2 (February 11, 2016): 423–40. http://dx.doi.org/10.5194/amt-9-423-2016.
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Abstract. We describe a two-channel broadband cavity enhanced absorption spectrometer (BBCEAS) for aircraft measurements of glyoxal (CHOCHO), methylglyoxal (CH3COCHO), nitrous acid (HONO), nitrogen dioxide (NO2), and water (H2O). The instrument spans 361–389 and 438–468 nm, using two light-emitting diodes (LEDs) and a single grating spectrometer with a charge-coupled device (CCD) detector. Robust performance is achieved using a custom optical mounting system, high-power LEDs with electronic on/off modulation, high-reflectivity cavity mirrors, and materials that minimize analyte surface losses. We have successfully deployed this instrument during two aircraft and two ground-based field campaigns to date. The demonstrated precision (2σ) for retrievals of CHOCHO, HONO and NO2 are 34, 350, and 80 parts per trillion (pptv) in 5 s. The accuracy is 5.8, 9.0, and 5.0 %, limited mainly by the available absorption cross sections.
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Min, K. E., R. A. Washenfelder, W. P. Dubé, A. O. Langford, P. M. Edwards, K. J. Zarzana, J. Stutz, et al. "A broadband cavity enhanced absorption spectrometer for aircraft measurements of glyoxal, methylglyoxal, nitrous acid, nitrogen dioxide, and water vapor." Atmospheric Measurement Techniques Discussions 8, no. 10 (October 29, 2015): 11209–54. http://dx.doi.org/10.5194/amtd-8-11209-2015.
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Abstract. We describe a two-channel broadband cavity enhanced absorption spectrometer (BBCEAS) for aircraft measurements of glyoxal (CHOCHO), methylglyoxal (CH3COCHO), nitrous acid (HONO), nitrogen dioxide (NO2), and water (H2O). The instrument spans 361–389 and 438–468 nm, using two light emitting diodes (LEDs) and a grating spectrometer with a charge-coupled device (CCD) detector. Robust performance is achieved using a custom optical mounting system, high power LEDs with electronic on/off modulation, state-of-the-art cavity mirrors, and materials that minimize analyte surface losses. We have successfully deployed this instrument during two aircraft and two ground-based field campaigns to date. The demonstrated precision (2σ) for retrievals of CHOCHO, HONO and NO2 are 34, 350 and 80 pptv in 5 s. The accuracy is 5.8, 9.0 and 5.0 % limited mainly by the available absorption cross sections.
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Jasper, Jonathan G., Thomas E. Lee, Carson J. Zabel, Chelsea L. Twohy, Kristina K. Lane, and Coral S. Robertson. "Mazama rufina (Artiodactyla: Cervidae)." Mammalian Species 54, no. 1016 (April 1, 2022): 212–19. http://dx.doi.org/10.1093/mspecies/seac001.
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Abstract Mazama rufina (Pucheran, 1851) is a small endemic cervid of the Andes of northern South America, commonly called the dwarf red brocket or little red brocket. It stands about 45 cm tall at the shoulder, has a red coloring on the body, with darker brown to black on the face and legs. Mazama rufina is one of eight species in the genus Mazama. It is generally found in the Andes mountain range that spans parts of Ecuador, Colombia, Peru, and Venezuela inhabiting the páramo and remaining patches of forest. It is currently considered “Vulnerable” (VU) by the International Union for Conservation of Nature and Natural Resources, mostly due to habitat destruction from encroaching human populations.
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Kaufmann, J. "Reading counter-hegemonic practices through a postmodern lens." International Journal of Lifelong Education 19, no. 5 (September 2000): 430–47. http://dx.doi.org/10.1080/026013700445558.
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Parsons, Douglas, Olga Minaeva, Srikant Sarangi, Danielle Ledoux, Juliet Moncaster, John Clark, David Hunter, and Lee Goldstein. "In Vivo Quasi-Elastic Light Scattering Eye Scanner Detects Molecular Aging in Humans and Mice." Innovation in Aging 5, Supplement_1 (December 1, 2021): 942–43. http://dx.doi.org/10.1093/geroni/igab046.3406.
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Abstract The absence of clinical tools to evaluate individual variation in the pace of aging represents a major impediment to understanding aging and maximizing health throughout life. The lens is an ideal tissue for quantitative assessment of molecular aging in vivo. Long-lived proteins in lens fiber cells are expressed during fetal life, do not undergo turnover, accumulate molecular alterations throughout life, and are optically accessible in vivo. We used quasi-elastic light scattering (QLS) to measure age-dependent signals in lenses of both healthy human subjects and wild-type C57BL/6 mice. Age-dependent QLS signal changes detected in vivo in humans and mice recapitulated time-dependent changes in hydrodynamic radius, protein polydispersity, and supramolecular order of human lens proteins during long-term incubation (~1 year) and in response to sustained oxidation (~2.5 months) in vitro. Our findings demonstrate that QLS analysis of lens proteins provides a practical technique for noninvasive assessment of molecular aging in vivo.
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Johnson, Bret. "American Music." Tempo 57, no. 226 (October 2003): 56–57. http://dx.doi.org/10.1017/s004029820330035x.
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LEES: Symphonies Nos. 2, 3 and 51; Etudes for piano and orchestra2. 1Staatsphilharmonie Rheinland-Pfalz c. Stephen Gunzenhauser, 2James Dick (pno), Texas Festival Orchestra c. Robert Spano. Albany TROY 564/565 (2-CDset).LEES: Passacaglia. PERSICHETTI: Symphony No 4. DAUGHERTY: Philadelphia Stories; Hell's Angels. Oregon Symphony c. James De Preist. Delos DE 3291.FLAGELLO: Symphony No. 1; Theme, Variations and Fugue; Sea Cliffs; Intermezzo. Slovak Radio Symphony Orchestra c. David Amos. Naxos 8.559148.HOVHANESS: Symphony No 22, City of Light1; Cello Concerto2. 2Janos Starker (vlc), Seattle Symphony c. 1Alan Hovhaness, 2Dennis Russell Davies. Naxos 8.559158.HOVHANESS: Symphonies: No 2, Mysterious Mountain; No 50, Mount St Helens; No 66, Hymn to Glacier Peak; Storm on Mt Wildcat, op.2 no.2. Royal Liverpool Philharmonic Orchestra c. Gerard Schwarz. Telarc CD-80604.
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Berbesque, J. Colette, and Kara C. Hoover. "Frequency and developmental timing of linear enamel hypoplasia defects in Early Archaic Texan hunter-gatherers." PeerJ 6 (February 13, 2018): e4367. http://dx.doi.org/10.7717/peerj.4367.
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Digital photographs taken under controlled conditions were used to examine the incidence of linear enamel hypoplasia defects (LEHs) in burials from the Buckeye Knoll archaeological site (41VT98 Victoria county, Texas), which spans the Early to Late Archaic Period (ca. 2,500–6,500 BP uncorrected radiocarbon). The majority (68 of 74 burials) date to the Texas Early Archaic, including one extremely early burial dated to 8,500 BP. The photogrammetric data collection method also results in an archive for Buckeye Knoll, a significant rare Archaic period collection that has been repatriated and reinterred. We analyzed the incidence and developmental timing of LEHs in permanent canines. Fifty-nine percent of permanent canines (n = 54) had at least one defect. There were no significant differences in LEH frequency between the maxillary and mandibular canines (U = 640.5, n1 = 37, n2 = 43, p = .110). The sample studied (n = 92 permanent canines) had an overall mean of 0.93 LEH defect per tooth, with a median of one defect, and a mode of zero defects. Average age at first insult was 3.92 (median = 4.00, range = 2.5–5.4) and the mean age of all insults per individual was 4.18 years old (range = 2.5–5.67). Age at first insult is consistent with onset of weaning stress—the weaning age range for hunter-gatherer societies is 1–4.5. Having an earlier age of first insult was associated with having more LEHs (n = 54, rho = −0.381, p = 0.005).
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Nesterkina, N. P., E. A. Kuznetsov, and Yu A. Zhuravleva. "DESIGN OF A LED LIGHTING DEVICE FOR GENERAL LIGHTING OF INDUSTRIAL AND OTHER PURPOSE ROOMS WITH HIGH SPAN." Spravochnik. Inzhenernyi zhurnal, no. 291 (June 2021): 27–30. http://dx.doi.org/10.14489/hb.2021.06.pp.027-030.
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The article is devoted to the design of a LED lighting device Laight Emitting Diode (LD) to replace the base LD with a gasdischarge light source for general lighting of industrial and other premises with high spans. The paper presents a description of the basic LD RSP 51 – 2000 and substantiates the need for its replacement. To create an LD with a high luminous efficiency, LEDs with a luminous efficacy of 142.2 lm/W at a rated current of 400 mA are used. When analyzing the results of ray tracing in the TracePro optical program for a flat and rounded protective screen of the LED LD, it was found that the most preferable is the use of a rounded protective screen made of Plexiglass. The results of modeling the LED LD showed that the designed LD is an energy efficient analogue of RSP 51 – 2000.
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Roes, Martina, Franziska Laporte-Uribe, Jem Bhatt, Carolien Smits, Aud Johanessen, Viktoria Peters-Nehrenheim, and Huerrem Tezcan-Guentekin. "INTERSECTIONALITY AND QUALITATIVE HEALTH RESEARCH: POTENTIALS TO IMPACT QUALITATIVE RESEARCH." Innovation in Aging 6, Supplement_1 (November 1, 2022): 245–46. http://dx.doi.org/10.1093/geroni/igac059.975.
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Abstract With a growing interest in intersectionality, critical qualitative researchers acknowledge the benefit from incorporating an intersectional lens. Incorporated intersectionality can be beneficial since it allows researchers from different disciplines to consider and account for the participant identities as multidimensional, fluid and, interdependent at each stage of the research process. In this presentation we will offer insights how qualitative research can be enhanced by incorporating an intersectional lens when analyzing the interconnectedness of numerous socially constructed identities (such as sex/gender/ethnicity/transnational families). Furthermore, we will address challenges how to conduct intersectional qualitative research (e.g. intersectional oriented interviews) and analysis (e.g. anticategorial, intracategorial and intercategorial complexity). This approach challenges on many levels, but since qualitative and interdisciplinary research is about utilizing meaning of phenomena, incorporating an intersectional lens will not only expand the methodological horizon of researchers but also stimulate ethical and critical inquiry throughout the research process.
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Settersten, Richard A., Laura Bernardi, Juho Härkönen, Toni C. Antonucci, Pearl A. Dykstra, Jutta Heckhausen, Diana Kuh, et al. "Understanding the effects of Covid-19 through a life course lens." Advances in Life Course Research 45 (September 2020): 100360. http://dx.doi.org/10.1016/j.alcr.2020.100360.
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Prins, Esther. "Examining interpersonal dynamics among adult learners through the lens of place." International Journal of Lifelong Education 28, no. 1 (January 2009): 91–106. http://dx.doi.org/10.1080/02601370802571253.
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Sieradzka-Baziur, Bożena. "Exploring the Verbal and Nonverbal Messages of Children Through Janusz Korczak’s Lens." Childhood in the Past 15, no. 1 (November 9, 2021): 44–60. http://dx.doi.org/10.1080/17585716.2021.1989213.
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MATHISKE, ANNABEL, DAVID THISTLE, HENDRIK GHEERARDYN, and GRITTA VEIT-KÖHLER. "Deep sea without limits—four new closely related species of Emertonia Wilson, 1932 (Copepoda: Harpacticoida: Paramesochridae) show characters with a world-wide distribution." Zootaxa 5051, no. 1 (October 12, 2021): 443–86. http://dx.doi.org/10.11646/zootaxa.5051.1.18.
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The large-scale dispersal of deep-sea harpacticoid copepods is an increasing focus for ecological studies. A fundamental prerequisite for monitoring and explaining their geographical distribution is precise descriptions of their morphology. Four new, closely related species of the family Paramesochridae (Copepoda, Harpacticoida) were found in the deep sea of the Pacific (San Diego Trough and off Chile), the Atlantic Ocean (Porcupine Abyssal Plain and Angola Basin), and the Atlantic and Indian Ocean sectors of the Southern Ocean (Weddell Sea and off Crozet Island). The discovery of Emertonia berndi sp. nov., E. hessleri sp. nov., E. ilse sp. nov., and E. serrata sp. nov. increases the number of known deep-sea species in this genus to ten. The new species are placed in Emertonia Wilson, 1932 because of their one-segmented endopods on the second and third swimming legs. The presence of a two-segmented endopod on the fourth swimming leg allocates them to the “andeep-group” within this genus. The four species can be distinguished from their congeners by the strongly serrated spines on the exopods of their swimming legs and an outwardly directed flexible seta on the exopod of the fifth leg. It is conveivable that these two specific characters evolved only once in the genus Emertonia. Their apparently cosmopolitan distribution covers thousands of kilometres and spans all major oceans. This biogeographical pattern may be explained by resuspension events followed by passive transport by benthic currents. Discrepancies in their dispersal ranges may be a result of changing geological and oceanographic boundaries.
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Tiesler, Vera. "Becoming Maya: Infancy and Upbringing Through the Lens of Pre-Hispanic Head Shaping." Childhood in the Past 4, no. 1 (September 2011): 117–32. http://dx.doi.org/10.1179/cip.2011.4.1.117.
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van Heumen, Lieke, and Tamar Heller. "Positive Psychology and Disability Studies: Directions for Research on Aging With IDD." Innovation in Aging 5, Supplement_1 (December 1, 2021): 224. http://dx.doi.org/10.1093/geroni/igab046.867.
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Abstract This presentation outlines future directions for research on aging with intellectual and developmental disabilities (IDD) informed by positive psychology and disability studies theory. Research on aging with IDD often focuses on losses in functioning that come with age and on ways to prevent such decline. When applying a positive psychology lens to the experience of aging with IDD the focus shifts to determinants of positive emotions and strength and on ways of increasing meaningfulness in life as one ages. A positive psychology lens also relies on the assumption that people can self-direct and organize their lives, which is essential for individuals aging with IDD who historically have lacked opportunities to exercise self-determination. Positive psychology as applied to disability aligns with disability studies perspectives that emphasize that different ways of being in the world can be ‘sources of knowledge, satisfaction, creativity, and happiness’ (Chivers, 2011 p.9).
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Hardin-Sigler, Kristen, Kaitlin Grelle, and Rebecca Deason. "Examining Subjective Aging through the Lens of the Caregiver Experience." Innovation in Aging 5, Supplement_1 (December 1, 2021): 792. http://dx.doi.org/10.1093/geroni/igab046.2922.
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Abstract Caregivers of individuals with Alzheimer’s disease and related dementia (ADRD) often experience burden that has been associated with poor physical and psychological health outcomes (Andren & Elmstahl, 2007; Zimmerman et al., 2018). However, very little research investigates how the caregiving experience may impact an individual’s subjective aging experience. Various aspects of subjective aging have been implicated in health outcomes and memory function (Brothers et al., 2017; Stephan, Sutin, Caudroit, & Terracciano, 2016). The purpose of this study was to investigate the differences in perceptions of subjective aging between caregivers and non-caregivers. Participants (N = 185) completed a survey assessing several aspects of subjective aging, including subjective age, or how old an individual feels, memory function, well-being, attitudes towards aging, and aging stereotypes. A series of independent t-tests indicated that there were significant differences between groups on subjective age (p = .013), and subjective memory function (p = .013). Caregivers (n = 93) reported feeling significantly older than their chronological age, reported significantly more subjective memory complaints, and also reported poorer subjective memory function when compared to the non-caregiver (n = 92) control group. Previous literature does suggest that older subjective age ratings are associated with poor subjective memory function, so these results are not necessarily surprising. However, these results suggest that caregiving for individuals with ADRD may negatively impact caregivers’ perceptions of their own aging experience, but not necessarily their perceptions about aging in general.
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Davis, Jamaine. "A MOLECULAR LENS FOCUSED ON UNDERSTANDING ALZHEIMER'S DISEASE HEALTH DISPARITIES." Innovation in Aging 6, Supplement_1 (November 1, 2022): 56–57. http://dx.doi.org/10.1093/geroni/igac059.219.
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Abstract Alzheimer’s disease (AD), the most common cause of dementia in older adults, disproportionally affects African Americans (AA) with an incidence rate as much as three times higher, compared to other racial/ethnic groups. Multiple factors contribute to this racial disparity however, an in-depth understanding of the biological or genetic contributions does not exist. Compelling evidence indicate that genetic variants of the lipid transport protein, ABCA7, is more strongly associated with AD in African Americans. To understand how ABCA7 contributes to AD on the molecular level, we used a combination of structural and cell biology techniques. Our results suggest that the ABCA7 variant (T319A) reported to confer risk in AA, may contribute to AD by reducing the levels of phosphoinositol bisphosphate (PIP2), a phospholipid reported to be decreased in the AD brain. These results provide a framework for targeting mechanisms that increase PIP2 levels as an effective strategy mitigating AD disparities.
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WALTER, PIERRE. "Through a gender lens: explaining North‐Eastern Thai women’s participation in adult literacy education." International Journal of Lifelong Education 23, no. 5 (September 2004): 423–41. http://dx.doi.org/10.1080/026037042000293407.
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Perry, Tam, and Sara Schwartz. "Changing Time Horizons and Trust: Experiences of Aging With Hemophilia." Innovation in Aging 5, Supplement_1 (December 1, 2021): 6. http://dx.doi.org/10.1093/geroni/igab046.022.
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Abstract Trust among those who have experienced a lifetime of medical encounters warrants attention to how trust is both cumulative and complex. This study of a historically isolated cohort incorporates interviews (n=25 older adults/professionals) and focus groups uses a lens of trust to highlight the experiences of those aging with hemophilia, individuals who never expected to age. Understood through the lens of trust, the data show evidence of the absence of safe spaces particularly during the early 80s - blood contamination concerns and homophobia-leading often to social withdrawal. Over time, however, some individuals and families created trusted venues to begin demanding research, treatment and policy change. Advocacy re-engaged the community to organize, educate and advance safety protocols for blood product manufacturing and distribution. This presentation will illuminate how experiences with medical providers, contaminated blood supplies, stigma and uncertain in other spheres of one’s life make trust a co-constructed, fragile concept.
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Carlo, Gustavo, and Laura Padilla‐Walker. "Adolescents’ Prosocial Behaviors Through a Multidimensional and Multicultural Lens." Child Development Perspectives 14, no. 4 (October 31, 2020): 265–72. http://dx.doi.org/10.1111/cdep.12391.
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IORIO, L. "ON A RECENT PRELIMINARY STUDY FOR THE MEASUREMENT OF THE LENSE–THIRRING EFFECT WITH THE GALILEO SATELLITES." International Journal of Modern Physics D 23, no. 04 (March 18, 2014): 1450028. http://dx.doi.org/10.1142/s021827181450028x.
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It has recently been proposed to combine the node drifts of the future constellation of 27 Galileo spacecraft together with those of the existing Laser Geodynamics Satellites (LAGEOS)-type satellites to improve the accuracy of the past and ongoing tests of the Lense–Thirring (LT) effect by removing the bias of a larger number of even zonal harmonics Jℓ than either done or planned so far. Actually, it seems a difficult goal to be achieved realistically for a number of reasons. First, the LT range signature of a Galileo-type satellite is as small as 0.5 mm over three-days arcs, corresponding to a node rate of just [Formula: see text] milliarcseconds per year (mas yr-1). Some tesseral and sectorial ocean tides such as K1 and K2 induce long-period harmonic node perturbations with frequencies which are integer multiples of the extremely slow Galileo's node rate [Formula: see text] completing a full cycle in about 40 yr. Thus, over time spans, T, of some years, they would act as superimposed semisecular aliasing trends. Since the coefficients of the Jℓ-free multisatellite linear combinations are determined only by the semimajor axis a, the eccentricity e and the inclination I, which are nominally equal for all the Galileo satellites, it is not possible to include all of them. Even using only one Galileo spacecraft together with the LAGEOS family would be unfeasible because of the fact that the resulting Galileo coefficient would be ≳ 1, thus enhancing the aliasing impact of the uncancelled nonconservative and tidal perturbations.
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Teli, Shivani Rajendra, Vicente Matus, Stanislav Zvanovec, Rafael Perez-Jimenez, Stanislav Vitek, and Zabih Ghassemlooy. "Optical Camera Communications for IoT–Rolling-Shutter Based MIMO Scheme with Grouped LED Array Transmitter." Sensors 20, no. 12 (June 13, 2020): 3361. http://dx.doi.org/10.3390/s20123361.
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In optical camera communications (OCC), the provision of both flicker-free illumination and high data rates are challenging issues, which can be addressed by utilizing the rolling-shutter (RS) property of the image sensors as the receiver (Rx). In this paper, we propose an RS-based multiple-input multiple-output OCC scheme for the Internet of things (IoT) application. A simplified design of multi-channel transmitter (Tx) using a 7.2 × 7.2 cm2 small 8 × 8 distributed light emitting diode (LED) array, based on grouping of LEDs, is proposed for flicker-free transmission. We carry out an experimental investigation of the indoor OCC system by employing a Raspberry Pi camera as the Rx, with RS capturing mode. Despite the small area of the display, flicker-free communication links within the range of 20–100 cm are established with data throughput of 960 to 120 bps sufficient for IoT. A method to extend link spans up to 1.8 m and the data throughput to 13.44 kbps using different configurations of multi-channel Tx is provided. The peak signal-to-noise ratio of ~14 and 16 dB and the rate of successfully received bits of 99.4 and 81% are measured for the shutter speeds of 200 and 800 µs for a link span of 1 m, respectively.
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Weil, Joyce. "PLACE AND MEANING OF HOME: RESEARCH IN A VIRTUAL, PHOTOVOICE LENS." Innovation in Aging 6, Supplement_1 (November 1, 2022): 246. http://dx.doi.org/10.1093/geroni/igac059.976.
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Abstract Photovoice is built upon the principle of empowerment. With the increased use of Smartphones, photovoice provides a more readily available qualitative option for co-research with older adults. This presentation provides examples from the current study illustrating the process of creating a project that uses photovoice to see how older adults construct the meaning of home and place. While the benefits of this design are many, some issues do arise during implementation, such as: creating study protocols to address Institutional Review Board (IRB) concerns; working with organizations to ensure that the design is truly co-created; and navigating and conducting photovoice in a completely virtual arena. Examples will also be drawn from technical training received as part of LeadingAge LTSS Center @UMass Boston and Collective Insight’s Aging Centered Outcomes Research Learning Collaborative, as well as the Healthier Black Elders Center, which is affiliated with the University of Michigan and Wayne State University.
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Dandapat, Sridipa, and Priyanka Tripathi. "Making Men out of Boys." Boyhood Studies 15, no. 1-2 (December 1, 2022): 80–93. http://dx.doi.org/10.3167/bhs.2022.15010205.
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With Richa Jha and Gautam Benegal’s picturebook The Unboy Boy (2013), India acquired the notion of alternative masculinity in children’s literature for perhaps the first time, and initiated the depiction in picturebooks of male characters who love soft toys, cook, dance, and dress in a way considered feminine. This article turns the critical lens toward gender codes that form the basis for masculinity discourses. Primarily drawing on Connell’s concept of hegemonic masculinity, it explores how contemporary Indian picturebooks in English are challenging the representation of traditional masculinity. Through the lens of content analysis, this qualitative research adopts a multimodal approach and scrutinizes three other picturebooks: Abba’s Day (2017) by Sunaina Ali and Debasmita Dasgupta, Kali Wants to Dance (2018) by Aparna Karthikeyan and Somesh Kumar, and Guthli Has Wings (2019) by Kanak Shashi.
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Kolesnyk, A. "Optical System for Led Luminaire." Metrology and instruments, no. 4 (September 7, 2019): 62–67. http://dx.doi.org/10.33955/2307-2180(4)2019.62-67.
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Lighting devices are an important element of a large number of technical systems, including road, living, industrial lighting, lighting systems of vehicles. It is known that the light instrument must fulfill two basic lighting tasks: to redistribute the light source of light source in the right way and to limit its dazzling effect. The introduction of light-emitting diodes (LEDs) for lighting necessitated a completely new quality in the construction of luminaires. The different production technology required new methods and designing tools. It also challenged designers with new problems to solve. LEDs are light sources emitting in one hemisphere, which requires a special approach to designing an LED lighting unit. However, for the illumination of premises with high spans or streets, roads such a light distribution is not suitable. For luminaires with solid-state light sources, other materials and new technology must be used; moreover, light distribution needs to be formed using different methods.
This paper presents the design process of a LED luminaire from concept to implementation, exemplified by road lighting, and describes the methods and procedures used by the designer. Also, technological problems influencing the quality of the above lighting are addressed. Optical systems for LEDs are considered. The peculiarities of the use of secondary optical elements in the form of lenses for purpose of obtaining different diagrams of the spatial distribution of light intensity of light-emitting diodes are analyzed. Features and problems of calculation of secondary optical systems are considered. Massive collimators do not have to be elements that focus a narrow beam of light. They are able to form a beam in accordance with any accepted distribution that is appropriate for a given application. They are also able to form a beam in a specific way that is required for outdoor lighting luminaires. The stages of a project for designing a road luminaire require the application of the knowledge and experience gained in various research projects. The design methods described in this paper have been developed designing activity and are also to be used successfully in lighting production.
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Hosny, Nadine M., Adam Danquah, Katherine Berry, and Ming Wai Wan. "Children’s Narratives of Family Life in Ghana: A Cultural Lens via Story Stems." Journal of Child and Family Studies 29, no. 12 (October 12, 2020): 3521–35. http://dx.doi.org/10.1007/s10826-020-01839-6.
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AbstractA Western worldview pervades the social and psychological study of children. The current study employed a story-stem method to qualitatively explore the daily and family life experiences of young Ghanaian primary school children in urban Ghana through their story narratives. The recorded narratives of 69 5- to 8-year-old children were elicited through presenting stems of common child-caregiver scenarios and thematically analysed. Five overarching themes were identified: daily routines and concerns, child-caregiver interactions, spirituality, death-related fears and depictions, and responses to injury. The narrative themes reveal the likely mental and physical occupations of these children, as characterized by household chores, financial concerns and school concerns, as well as underlying cultural values through their portrayals of parenting values, parental discipline and spiritual beliefs. Story stems depicting common childhood problems (e.g. knee injury) sometimes evoked death and hospitalization subthemes following an escalation of health problems. Possible interpretations for these findings are discussed, taking into account cultural, developmental and emotional factors. Story stems are a promising and developmentally appropriate tool for qualitative analysts to investigate the experiences and worldview of young children in non-Western cultures.
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Grinshteyn, Erin. "An Ounce of Prevention: Reducing Ageism Through the Lens of Public Health." Innovation in Aging 5, Supplement_1 (December 1, 2021): 752. http://dx.doi.org/10.1093/geroni/igab046.2790.
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Abstract Ageism is pervasive. The negative consequences of ageism are vast, and the literature on the effects of ageism on health and health care is extensive. The perpetrators of ageism are equally vast. While it may be tempting to believe that those who go into the fields of gerontology and geriatrics are free from these attitudes and behaviors, this is untrue. It is reasonable to suspect that future public health professionals, even those interested in gerontology, may also carry ageist ideas and practices into their professional careers. This research was developed to determine whether teaching about aging and ageism in a public health course could reduce ageism among students. Participants were students in a class on aging and public health. All students were graduate students in a Master of Public Health (MPH) program. Multiple assessments were used to assess ageism including the Framboni Scale of Ageism (FSA), a validated 29-question measure used to assess ageism, and the Succession, Identity, and Consumption (SIC) scale, another scale assessing ageism. Students were enrolled in an elective course on aging and public health, which was taught through the public health lens of disease prevention and health promotion. Health topics related to aging are discussed with an emphasis on prevention. The contributions older adults make, and the resulting improved health and well-being of self, others, and community are promoted. And the class participates in activities with a variety of community-dwelling older adults. Results show that ageism among students is reduced after the semester long course.
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Gan, Daniel R. Y., Graham Rowles, and Habib Chaudhury. "At-Homeness: Rethinking Personhood-in-Community Through the Lens of Social Identity." Innovation in Aging 5, Supplement_1 (December 1, 2021): 394. http://dx.doi.org/10.1093/geroni/igab046.1534.
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Abstract Since Chaudhury’s seminal work (2008), spatial ethnographies of the everyday lives of people living with dementia(PLWD) have proliferated. From an experiential perspective, geographies of home (Blunt & Varley, 2004) and geographies of dementia may overlap significantly. We conducted a meta-ethnographic synthesis of n=28 articles to identify points of convergence and divergence in these literatures using comparative thematic analysis with NVivo 12. Whereas geographies of home highlight at-homeness (e.g., ontological safety and daily activities), geographies of dementia underscore communal and civic participation (e.g., social relationships). These themes converge around “social identity” which may be an important construct that helps PLWD feel at home. The quality of life of PLWD in the community may be influenced by prior (and present) experiences of at-homeness. These become more pertinent as older adults shelter in place. We discuss the implications of these findings in relation to relational models of personhood-in-community (Swinton, 2020) and community gerontology.